自适应谱线增强滤波器在体表胃电提取中的应用

The Application of Adaptive Line Enhancement Filter in Extracting Cutaneous Electrogastrogram

在体表胃电信号提取中 ,采用FIR自适应谱线增强器滤波技术 ,抵消噪声 ,达到提高体表胃电信噪比目的。文中给出了滤波器收敛因子、权系数的设计方法 ,提供了模拟及分析处理结果。

Based on the principle of adaptive filtering, The higher signal-to-noise ratio of electrogastrogram data can be extracted from abdomen skin with the adaptive line enhancement filter. The design method of feedback factor and filtering coeffcient is introduced in this paper. Experimental and practical results show the method is effective.